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zhak



Joined: 12 Apr 2005
Posts: 490
Location: Belarus
zhak
Hi!
Is it possible to assign a time stamp as the var value during compilation?
the idea is the following: fasm generates BIOS Param Block for FAT file system. I want to assign timestamp to BS_VolID (dword) variable so it will be different each time the source code is compiled. How can I do this?
Thanks a lot!
Post 24 Jul 2008, 08:48
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SFeLi



Joined: 03 Nov 2004
Posts: 140
SFeLi
Code:
dd %t    
?
Post 24 Jul 2008, 11:33
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zhak



Joined: 12 Apr 2005
Posts: 490
Location: Belarus
zhak
thanks, SFeLi. But I figured out that this doesn't work in my case. It seems that standard time/date stamp (used in PE headers, for example) and time/date format used by FAT are not the same. For example,
a file was created on 24.07.08 20:36 GMT (plus/minus some seconds, it's not critical).
%t command outputs 4888E7B6 time/date stamp
but date and time of last write in FAT Directory Entry is written as 38F8BC83h.
These values not even close to each other...

*went to do some research on the subj.... maybe i'd be able to write some macro that will convert one timestamp to another (bad for me that I'm absolute zero in macro writing:( )
Post 24 Jul 2008, 20:53
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ManOfSteel



Joined: 02 Feb 2005
Posts: 1154
ManOfSteel
F838 is MS-DOS date for 7/24/2008
11100 = 28 (1980 + 28 = 2008)
0111 = 7
11000 = 24

83BC is MS-DOS time for 11:36:06 PM
10111 = 23
100100 = 36
00011 = 3 (6 / 2 = 3)

----

B6E78848 is ANSI C "time_t" for 7/24/2008 10:36:06 PM
Post 25 Jul 2008, 07:03
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zhak



Joined: 12 Apr 2005
Posts: 490
Location: Belarus
zhak
TRUE! i already know both time/date formats. Now I'm trying to convert one to another. anyway, thanks )
Post 25 Jul 2008, 10:24
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